ABOUT
Now I help healthtech teams build that knowledge into their products.
20 years at the bedside taught me what the data misses.
Where's the fog?
WTFog stands for "Where's the fog" The fog is the gender bias that most healthtech teams never see coming — invisible until it causes harm.
I chose that name because the problem is not malice. It is a visibility problem.
Teams do not build products that overlook women because they want to. They build them that way because the bias is embedded in the evidence they rely on, the data they train on, and the assumptions they have never been asked to examine.
Teresa Hernández, MD
I am a physician with 20 years of experience in paediatrics, adolescent medicine and neonatal intensive care in Spain, Portugal and Italy.
Over these years I have seen what happens when scientific evidence does not represent the person in front of you. Clinicians work with protocols built on populations that do not capture the real complexity of human beings — and women end up misdiagnosed, undertreated, or receiving care that was never validated for them.
I founded WTFog to bridge clinical medicine, digital health and equity — and to help teams build products that work for real people, not statistical models.
What I believe
Digital health has an extraordinary opportunity.
For the first time, we have tools that could extend good medicine to people who have never had access to it. But only if we build them on evidence that represents the full complexity of human beings.
Women are not a special case or an edge case. They are half the population. A product that works for them is not a more expensive product. It is a better product.
The standard of care should work for everyone. So should the technology behind it.
Teresa Hernández, MD · WTFog
Training & credentials
Medical background:
- MD — University of Santiago de Compostela
- Specialist in Paediatrics and Neonatal Intensive Care
- 20 years of clinical practice across Spain, Portugal, and Italy
Additional training:
- Clinical rigour applied to AI and digital health (MIT · Microsoft)
- Value-based Healthcare and outcomes measurement (EIT Health)
- Diversity, equity and inclusion as strategic assets (University of Barcelona)
- Gender gaps and unconscious bias in medicine (MIT · Women in Leadership)